// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef SKIA_EXT_SK_DISCARDABLE_MEMORY_CHROME_H_
#define SKIA_EXT_SK_DISCARDABLE_MEMORY_CHROME_H_

#include <memory>

#include "third_party/skia/src/core/SkDiscardableMemory.h"

namespace base {
class DiscardableMemory;

namespace trace_event {
    class MemoryAllocatorDump;
    class ProcessMemoryDump;
}

} // namespace base

// This class implements the SkDiscardableMemory interface using
// base::DiscardableMemory.
class SK_API SkDiscardableMemoryChrome : public SkDiscardableMemory {
public:
    ~SkDiscardableMemoryChrome() override;

    // SkDiscardableMemory:
    bool lock() override;
    void* data() override;
    void unlock() override;

    base::trace_event::MemoryAllocatorDump* CreateMemoryAllocatorDump(
        const char* name,
        base::trace_event::ProcessMemoryDump* pmd) const;

private:
    friend class SkDiscardableMemory;

    SkDiscardableMemoryChrome(std::unique_ptr<base::DiscardableMemory> memory);

    std::unique_ptr<base::DiscardableMemory> discardable_;
};

#endif // SKIA_EXT_SK_DISCARDABLE_MEMORY_CHROME_H_
